Elevator controlling apparatus.



No. 645,89l. Patented Mar. 20, I900. J. J. COOK.

ELEVATOR CONTROLLING APPARATUS.

(Application filed May 18, 1899.)

2 Sheets-Sheet (No Modai.

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No. 645,89]. Patented Mar. 20, I900.

J; J. COOK.

ELEVATOR CONTROLLING APPARATUS.

(Application filed m'ay 18, 1899.)

2 Sheets-Sheet 2,

(No Model.)

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ATTORNEYS.

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UNITED STATES PATENT OFFICE.

JOHN JOSEPH COOK, OF BUTTE, MONTANA, ASSIGNOR OF ONE-HALF TO WALTER W.WISHON, OF SAME PLACE.

ELEVATOR CONTROLLING APPARATUS.

SPECIFICATION forming part of Letters latent No. 645,891, dat d March20, 1900.

Application filed May 18, 1899. Serial No. 717,285. (No model.)

T0 00% whom it may concern.-

Be it known that I, JOHN JOSEPH COOK, of Butte, in the county of SilverBow and State of Montana, have invented. a new and Improved ElevatorControlling Apparatus, of which the following is a full, clear, andexact description.

This invention relates to devices for stopping the movements ofelevator-cars, the invention being particularly adapted to mineelevatorsand being so constructed as to provide an absolutely sure and effectivemeans of holding the elevator, such means being continually under thecontrol of the operator.

This specification is the disclosure of one form of my invention, whilethe claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views Figure 1 is a front elevation ofthe apparatus with parts in section. Fig. 2 is a vertical section on theline 2 2 of Fig. 1. Fig. 3 .is an enlarged plan of the hand-lever. Fig.4 is an enlarged edge View thereof. Fig. 5 is an'enlarged view showingthe action of the dogs, and Fig. 6 is a view showing a double-deck carfitted for my improvement.

The car 6, which is, as shown in Figs. 1 and 2, of the single-deckclass, is mounted to move between the guide-rails 7, which are fixed inthe elevatorshaft. The drawings simply show the upper portion of the carwith the upper deck thereof, it being understood that the lower portionand lower deck of the car are omitted. The invention may, however,

be adapted to a car with a single deck, as will be understood.

Mounted in the framing of the car, below the deck or platform thereof,are two shafts 8, to the ends of which are fixed the dogs 9, which havetoothed cam-surfaces adapted to bear against the respective rails 7, soas to grip with the same and stop the car. To each shaft 8, adjacent toone end thereof and opposite to each other, is fixed a pinion 10. Thesepinions mesh, respectively, with racks 11, which extend verticallybetween the pinions and which are fastened at their upper ends to a link12. By the movement of the racks 11,

through the medium of the link 12 and mechanism hereinafter to bedescribed, the pinions 10 and shafts 8 may be turned and the dogs 9thrown into and out of engagement with the rails 7.

The upper end of the link 12 is pivotally joined to a lever 14,fulcrumed on a stud 15, projecting from the framing of the elevator car.This lever 14 has a hand-latch 16 pivoted thereon and provided with apin 17 at one end, such pin coacting with an orificed quad rant 18,fastened to the elevator-car, by means of which arrangement the lever 14may be held in any desired position. Aspring 19 is mounted between thelever 14 and the latch 16 to throw the pin 17 normally into engagementwith the quadrant 18. By this arrangement the person controlling the carand standing on the platform or deck thereof may throw the lever 14 toany desired position, thus on gaging or disengaging the dogs 9 and therails 7 and thoroughly controlling the car.

' Should the invention be applied to a double decked car, as shown inFig. 6, the racks 11 .should be fastened at their lower ends to a link20, which passes downward to and connects with racks 11 similar to theracks 11, at the bottom deck or platform of the car, so that dogs 9similar to the dogs 9, may be thrown into and out of actionsimultaneously with said dogs 9.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination with an elevator-car and with aguide-rail past which the car moves, of shafts mounted on the car, a dogattached to each shaft and working with the guide-rail, a gear attachedto each shaft, racks rigidly connected with each other and respectivelymeshed with the gears, a link to which the racks are fastened, a levermounted on the car and pivoted to the link, a hand-latch mounted on thelever, and a quadrant mounted on the rack and coacting with thehandlateh to hold the lever in the desired position.

2. The combination, with an elevator-car and with a member stationarywith respect thereto, of a shaft mounted to turn on the car,

a dog carried by the shaft, the dog working with the stationary memberto hold the car,

a gear fixed to the shaft, a rack meshed with the gear to drive thesame, a link connected with the rack, and a hand-lever having connectionwith the link to impart movement with each other and sliding in unison,the

thereto.

3. The combination with an elevator-ear and with a vertically-disposedmember stationary with respect thereto, of rock-shafts mounted on thecar respectively on opposite sides of said stationary member, dogscarried by the rock-shafts and serving to engage said stationary memberat opposite sides thereof, gears fast to the shafts, two racks situatebe- I tween the rock-shafts and fastened rigidly 5 racks respectivelyengaging the gears, and means for throwing the racks.

JOHN JOSEPH COOK.

W'itnesses:

J. H. CONWAY, JOHN J. lVICI-IATTON.

